Sianturi A, Ningsih YL. INTEGRATING GEOGEBRA IN LEARNING RIGHT TRIANGLE GEOMETRY:A DESCRIPTIVE STUDY OF FIRST-YEAR UNIVERSITY STUDENTS’ RESPONSES. Perpendicular [Internet]. 2025 Dec. 30 [cited 2026 Jan. 19];1(2):90-100. Available from: https://jurnal.dokicti.org/index.php/perpendicular/article/view/1531